Question
Xylia ordered a bowl of fishball noodles and shared it with Riordan. She ate 19 of it. Riordan ate five times as much fishball noodles as she did. What fraction of the bowl of fishball noodles was left?
4 m

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Xylia ordered a bowl of fishball noodles and shared it with Riordan. She ate 19 of it. Riordan ate five times as much fishball noodles as she did. What fraction of the bowl of fishball noodles was left?